Commit Graph

8 Commits

Author SHA1 Message Date
Adin Scannell add40fd6ad Update canonical repository.
This can be merged after:
https://github.com/google/gvisor-website/pull/77
  or
https://github.com/google/gvisor-website/pull/78

PiperOrigin-RevId: 253132620
2019-06-13 16:50:15 -07:00
Michael Pratt 2a0c69b19f Remove license comments
Nothing reads them and they can simply get stale.

Generated with:
$ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD

PiperOrigin-RevId: 231818945
Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
2019-01-31 11:12:53 -08:00
Fabricio Voznika 5ce542ecc7 Undo changes in case of failure to create file/dir/symlink
File/dir/symlink creation is multi-step and may leave state behind in
case of failure in one of the steps. Added best effort attempt to
clean up.

PiperOrigin-RevId: 228286612
Change-Id: Ib03c27cd3d3e4f44d0352edc6ee212a53412d7f1
2019-01-07 23:02:19 -08:00
Fabricio Voznika ccc3d7ca11 Make lazy open the mode of operation for fsgofer
With recent changes to 9P server, path walks are now safe inside
open, create, rename and setattr calls. To simplify the code, remove
the lazyopen=false mode that was used for bind mounts, and converge
all mounts to using lazy open.

PiperOrigin-RevId: 219508628
Change-Id: I073e7e1e2e9a9972d150eaf4cb29e553997a9b76
2018-10-31 11:28:27 -07:00
Adin Scannell 75cd70ecc9 Track paths and provide a rename hook.
This change also adds extensive testing to the p9 package via mocks. The sanity
checks and type checks are moved from the gofer into the core package, where
they can be more easily validated.

PiperOrigin-RevId: 218296768
Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-23 00:20:15 -07:00
Fabricio Voznika db81c0b02f Put fsgofer inside chroot
Now each container gets its own dedicated gofer that is chroot'd to the
rootfs path. This is done to add an extra layer of security in case the
gofer gets compromised.

PiperOrigin-RevId: 210396476
Change-Id: Iba21360a59dfe90875d61000db103f8609157ca0
2018-08-27 11:10:14 -07:00
Kevin Krakauer 635b0c4593 runsc fsgofer: Support dynamic serving of filesystems.
When multiple containers run inside a sentry, each container has its own root
filesystem and set of mounts. Containers are also added after sentry boot rather
than all configured and known at boot time.

The fsgofer needs to be able to serve the root filesystem of each container.
Thus, it must be possible to add filesystems after the fsgofer has already
started.

This change:
* Creates a URPC endpoint within the gofer process that listens for requests to
  serve new content.
* Enables the sentry, when starting a new container, to add the new container's
  filesystem.
* Mounts those new filesystems at separate roots within the sentry.

PiperOrigin-RevId: 208903248
Change-Id: Ifa91ec9c8caf5f2f0a9eead83c4a57090ce92068
2018-08-15 16:25:22 -07:00
Googler d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00